1、STD-BSI BS EN b1907-ENGL 2000 M lb24bb7 0877711 IL3 D BRITISH STANDARD Audio recording - Minidisc system The European Standard EN 61909:2000 has the status of a British standard ICs 33.160.30 IS EN i1909:2000 EC 619092000 NO COPYING WFTHOUT BSI PERMISSION EXCEPT As PEBMl“ED BY COPYBIGET LAW _ STDOBS
2、I BS EN bL707-ENGL 2000 D lb24bb7 0877732 05T D BS EN 619092000 National foreword This British Standard is the official Engiish language version of EN 61909:2. It is identical with IEC 61909:2. The UK participation in its preparation was entrusted by Technid Committee EPIJlOo, Audio, video and multi
3、media systems and equipment, to Subcommittee EPYlOoL2, Recording, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible intemationayEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - m
4、onitor related internatiod and European developments and promulgate them in the UK A iist of organhiions represented on this subcommittee can be obtained on request to its secretuy. Flom 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has be
5、en renumbered as IEC 027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers Com both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normaliy include an annex which lists normative refere
6、nces to international publications with their corresponding European publications. The British Shdards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Internationai Standards Correspondence In
7、dex“, or by using the “Find“ faciiity of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a conimct. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself c
8、onfer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 195 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. This British Sandard, having been
9、 prepared under the direction of the Electrotechnicai Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 2000 Amendments issued since publication Amd.No. ID* I Q BSI 11-2000 ISBN O 580 36673 1 STD-BSI BS EN b3707-ENGL 2000 W lib2Libb7
10、0877733 T7b W EN 61909 EUROPEAN STANDARD NORME EUROPEENNE EUROPISCHE NORM August 2000 ICs 33.160.30 English version Audio recording - Minidisc system (IEC 61 909:2000) Enregistrement audio Systme de minidisque (CE1 61909:2000) Tonaufzeichnung - Minidisc-System (IEC 61909:2000) This European Standard
11、 was approved by CENELEC on 2OOCL08-01. CENELEC members are bound to comply with the CENCENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Uptodate lists and bibliographical references concerning suc
12、h national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, Geman). A version in any other language made by translation under the responsibility of a CENELEC member into its own la
13、nguage and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal,
14、 Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 BNSSS Q 2000 CENELEC - All rights of expl
15、oitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61909:2000 E STD-BSI BS EN bL707-ENGL 2000 H Lb24bb7 0877714 722 Page 2 EN 61909:2000 Foreword The text of document 100B/259/FDIS, future edition 1 of IEC 61909, prepared by SC 1006, Audio, video and multimedia
16、 information storage systems, of IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61 909 on 2000-08-01. The following dates were fixed: - latest date by which the EN has to be implemented at national level
17、 by publication of an identical national standard or by endorsement (dop) 2001-05-01 - latest date by which the national standards conflicting with the EN have to be withdrawn (dw) 2003-08-01 Annexes designated “normative“ are part of the body of the standard. Annexes designated “informative“ are gi
18、ven for information only. In this standard, annex ZA is nonnative and annex A is informative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard IEC 61909:2000 was approved by CENELEC as a European Standard without any modification. STD-BSI BS EN bL707-ENGL
19、 2000 m lbZLibb7 0877735 b m Page 3 EN 61909:2000 CONTENTS Page Clause 1 General 8 1.1 Scope . 8 1.2 Normative references 8 1.3 Basic parameters 8 1.4 Definitions 9 2 Disc specification . 15 2.1 Validity . 15 2.2 Conditions for measurement of the mechanical dimensions . 15 2.3 Other test conditions
20、. 15 2.4 Optical pick-up unit for disc measurements . 15 2.5 Read out system . 16 2.6 Outer diameter . 16 2.7 Centre hole . 17 2.8 Thickness . 17 2.9 Clamping block . 17 2.10 Deflection . 18 2.1 1 Protective coating . 18 2.12 Optical requirements . 19 2.13 Information area . 20 2.14 Track pitch . 20
21、 2.15 Rotation 21 2.16 Vertical deviations of the information layer 21 2.17 Radial deviations of the track 21 2.18 Write conditions (valid only for recordable groove) 22 2.19 Read conditions 23 2.20 HF signals 24 2.21 Radial tracking signals (including lead-in and lead-out areas) 25 2.22 Tangential
22、tracking signals (valid only for recordable groove and lead-out groove)25 2.23 2.24 Operating conditions . 26 2.25 Storage conditions 26 3 Optical stylus . 3 4 Cartridge . 33 4.1 Size 34 4.2 Mass 34 4.3 Centre hole on the bottom . 34 4.4 Windows . 34 4.5 Shutter . 34 4.6 4.7 Address encoding (valid
23、only for recordable groove and lead-out groove) 26 Horizontal centring of the disc on the player/recorder 35 Horizontal pre-position of the disc in the cartridge . 35 Q BSI 11-2000 STD-BSI BS EN b1909-ENGL 2000 lb24bb9 08777Lb 7T5 Page 4 EN 61909:2000 Clause Page 4.8 Vertical positioning of the disc
24、 on the playerhecorder 35 4.9 Vertical clearance between the disc and the cartridge . 36 4.10 Depth of the sensing holes 36 4.1 1 Depth of sensing ditch 37 4.12 Holding force 37 4.1 3 Operating conditions . 37 4.14 Storage conditions 37 4.1 5 Protection of the information area on the disc 37 5 Addre
25、ss . 47 5.1 Cluster concept 47 5.2 Pits . 47 5.3 Groove . 48 5.4 Disc layout . 48 5.5 Border of a cluster 48 5.6 Conversion table from address to time 49 Pregroove modulation (valid only for recordable MD) . 49 6.1 Validity . 49 6.2 General parameters 49 6.3 FM modulation 50 6.4 Sector format 50 6.5
26、 Data format 51 6.6 Error detection 51 6.7 Bit rate . 51 6.8 ADIP encoder . 52 7 EFM modulation 52 7.1 General 52 7.2 Subcode . 52 ACIRC error correction system 55 8.1 General 55 8.2 ACIRC encoder . 55 8.3 ACIRC decoder . 55 Sector data structure . 60 9.1 General 60 9.2 Scrambling . 60 9.3 Sector sy
27、nc 60 9.4 Sector header . 60 9.5 Data field 61 10 Audio data . 66 10.1 Audio sector data format . 66 10.2 Audio data decoding . 79 10.3 Additional information . 98 6 8 9 Q BSI 11-2000 . . STD=BSI BS EN b2707-ENGL 2000 Lb24bb7 0877737 b33 Page 6 EN 61909:2000 Clause Page 11 Data organization 116 11.1
28、 General 116 11.2 Synchronization rules . 117 11.3 Linking rules (valid only for recordable grooves) . 117 Il . 4 Lead-in area 118 11.5 Premastered area 125 11.6 UTOC area 125 11.7 Recordable user area . 134 1 1.8 Lead-out area 137 11.9 Modified IS0 8859-1 code for the minidisc system 153 11.1 O Mus
29、ic shifted JIS code for the minidisc system . 153 Il . 11 Application rule for Japanese Katakana format . 160 Serial copy management system 163 12.1 General 163 12.2 Recording rule on the MD . 163 12.3 13 Shock proof memory system 166 13.2 12 Playback rule to the digital audio interface 165 13.1 Lin
30、ear velocity 166 Shock proof feature 166 14.1 Playback rules . 167 14.2 Recording rules 167 14.3 Premastered MD 168 14 Application rules 167 Annex A (informative) Recommendations and clarifications for the MD system . 169 A . 1 A . 2 A.3 A.4 A.5 A.6 A.7 A.8 A.9 A.10 A.11 A.12 A.13 A.14 A.15 A.16 A.1
31、7 A.18 Principles of operation 169 Measurement of the disc reflectivity 170 Measurement of the optical disc unbalance . 171 Measurement of the groove wobble amplitude . 172 Beat of wobble and groove geometry 174 Environment operating and storage conditions 178 Measurement of the optimum recording po
32、wer Po . 179 Measurement of jitter and signal frequency time errors 180 Local defects 183 Burst errors 183 Push-pull tracking signal . 183 Noise in push-pull tracking signal 183 Diagauges for centre hole on the disc . 183 Compliance test of the MD cartridge . 186 Area for braille 188 Long shutter .
33、188 Extended volume and bend of cartridge 188 Definition of air cleanliness . 189 8 BSI 11-2000 Page 6 EN 61909:2000 Page A.19 A.20 Measurement of the friction force 191 A.21 Label area 192 A.22 Wobble signal leakage into Isurn 193 Test of impact durability (recordable disc only) 191 Annex ZA (norma
34、tive) Normative recommendations to international publications with their Figure 1 . Layout of the MD 14 corresponding European publications 195 Figure 2 . MiniDisc possible profile 27 Figure 3 - HF signal 28 Figure 4 - Spectral components of the time error versus the maximum allowed time error due t
35、o mastering or recording . 29 Figure 5 - Typical shape of the error signal for tracking versus radial position 29 Figure 6 - Open-loop transfer function of the radial servo for an MD-recorder . 30 Figure 7 - Open-loop transfer function of the radial servo for tracking measurement . 30 Figure 8 - Ope
36、rating conditions . 31 Figure 9 - Roughness and irregularity (recordable disc only) 32 Figure 10 - Optical stylus . 33 Figure 11 - MD cartridge specifications for the premastered version . 41 Figure 13 - Maximum existing area of the disc . 46 Figure 14 - ADIP encoder block diagram 52 Figure 15 - MD
37、encoding/decoding system (main channel) . 54 Figure 16 - ACIRC encoder (add-on de-interleave + encoder) 56 Figure 17 - Integrated ACIRC decoder . 57 Figure 18 - ACIRC decoder (CIRC decoder + add-on interleave) 58 Figure 19 - Integrated ACIRC decoder . 59 Figure 20 - Relation between 16 bit samples a
38、nd data bytes 62 Figure 21 - Layout of a data block . 63 Figure 22 - Scrambler structure . 63 Figure 23 - Layout of the sync field 64 Figure 24 - Layout of the header field 64 Figure 25 - Sector construction of MD 65 Figure 12 - MD cartridge specifications for the recordable version . 45 Figure 26 -
39、 Synchronization rules 138 Figure 27 - Linking rule . 139 Figure 28 - Sector structure of MD (general) 140 Figure 29 - Sector structure of MD (programme area) 141 Figure 30 - Sector structure of MD (TOC sector = O (mandatory) . 142 Figure 31 - Sector structure of MD (TOC sector = 1 (option) . 143 Fi
40、gure 32 - Sector structure of MD (TOC sector = 2 (option) . 144 Figure 33 - Sector structure of MD (TOC sector = 3 (option) . 145 Q BSI 11-2000 STD.BS1 BS EN b1909-ENGL 2000 1b2LibbS 0877717 904 - Page 7 EN 61909:2000 Page Figure 34 . Sector structure of MD (TOC sector = 4 (option) . 146 Figure 35 .
41、 Sector structure of MD (UTOC sector = O (mandatory) 147 Figure 36 . Sector structure of MD (UTOC sector = 1 (option) . 148 Figure 37 . Sector structure of MD (UTOC sector = 2 (option) . 149 Figure 39 . Mapping of JIS code to shifted JIS . 156 Figure 40 . Example of transformation rule 161 Figure A.
42、2 . Unbalance versus read out time in a recordable MD system 171 Figure A.3 . Radial error signal 173 Figure AS . Grooves in phase“ . 351 Figure A.6 . Grooves out of phase“ . 176 Figure 38 . Sector structure of MD (UTOC sector = 4 (option) . 150 Figure A.l . Schematic set-up for reflectivity measure
43、ments 170 Figure A.4 . Groove wobble . 174 Figure A.7 . Groove geometry . 176 Figure A.8 . ATER and BLER windows for a wide and deep groove 177 Figure A.9 . ATER and BLER windows for a narrow and shallow groove 177 Figure A.1 O . Cyclic climatic test 179 Figure A.l 1 . Recording power (mW) versus bl
44、ock error rate . 180 Figure A.12 . Examples of time errors 182 Figure A.13 . Diagauge . 184 Figure A.14 . Disc base . 185 Figure A.15 . Measurement method . 185 Figure A.16 . Test gauge . 186 Figure A.17 . Test method (4-forces) . 187 Figure A.18 . Test method (3-forces) . 187 Figure A.19 . The area
45、 for braille . 188 Figure A.20 . Extended volume and bend of cartridge 189 Figure A.21 . Number of particles 190 Figure A.22 . Test of impact durability . 191 Figure A.23 . Arrangement of head and disc for the measurement of friction force . 192 Figure A.24 . Label area 193 Figure A.25 . Wobble sign
46、al leakage . 194 Table 1 . ASCII . Code table . 151 Table 2 - 6 bit format . 152 Table 3 - Modified IS0 8859-1 code table for the minidisc system 154 Table 4 - JIS code table for minidisc system 155 Table 6 - Caption of illustrated characters . 158 Table 7 - The translation between the Roman alphabe
47、t and Japanese katakana 162 Table 5 - Contents of MD external characters 157 Table 8 - Recording rule 164 8 BSI 11-2000 STD-BSI BS EN b1907-ENGL 2000 m 162qbb9 0877720 126 m Page 8 EN 61909:2000 AUDIO RECORDING - MINIDISC SYSTEM 1 General 1.1 Scope This International Standard applies to the MiniDisc
48、 (MD). It defines the mechanical and electrical characteristics necessary to ensure the interchangeability of both premastered optical discs and recordable magneto-optical discs of 64 mm diameter for the compressed digital audio recording system. 1.2 Normative references The following normative docu
49、ments contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and IS0 m
